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Index › Programming Questions & Help › Syntax Questions › "for" loop to create object instances
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"for" loop to create object instances (Read 685 times)
DeepSandwich
"for" loop to create object instances
Aug 16th, 2009, 10:06am  
say i have a class called "Car".

i could declare some cars like this:

Code:
Car myCar1 = new Car();
Car myCar2 = new Car();
Car myCar3 = new Car();
Car myCar4 = new Car();
Car myCar5 = new Car();
...


What if i want to create many many Cars using a for() loop or something? what is the right way to have the loop append a number to the string "myCar" for each car i want to create?

Additionally, say i already have 100 or so Cars, each named myCar00, myCar01,... all the way to myCar99. What would be the right way to have a for() loop reference a specific car based on the value of its internal index ("i" or example)?

I hope my questions make sense.
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PhiLho 
Re: "for" loop to create object instances
Reply #1 - Aug 16th, 2009, 10:28am  
See [] (array access) and array functions in reference.
You do:
Code:
Car[] myCars = new Car[CAR_NB];
for (int i = 0; i < CAR_NB; i++)
{
  myCars[i] = new Car();
}

Note you declare the array, then each element, with slightly different syntaxes.
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DeepSandwich
Re: "for" loop to create object instances
Reply #2 - Aug 16th, 2009, 11:11am  
ahhhh ok... duh. so it wouldn't create myCar1, myCar2,..... but it creates myCar[1], and myCar[2],... gotcha. Thanks.
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